dropout vs wing nut

dropout

noun
  • The slot in the frame that accepts the axles of the wheels. 

  • A technique for regularizing a neural network by discarding a random subset of its units. 

  • Someone who has opted out of conventional society. 

  • One who suddenly leaves anything, or the act of doing so. 

  • Someone who has left an educational institution without completing the course 

  • A damaged portion of a tape or disk, causing a brief omission of audio, video, or data. 

  • Momentary loss of an electronic signal. 

wing nut

noun
  • A nut with wing-like projections to provide leverage in turning with thumb and forefinger. 

  • One who advocates extreme measures or changes, especially if they hold or are perceived to hold far-right viewpoints; a radical or reactionary. 

  • Someone with large, protruding ears. 

How often have the words dropout and wing nut occurred in a corpus of books? (source: Google Ngram Viewer )